#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <LiquidMenu.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

//ENCODER
#define outputB 4
#define outputA 3
#define sw 2
//buzzer
#define buzzer  9
//reles
#define rele1 10
#define rele2 11
#define rele3 12


int aState;
int aLastState;

int lleno = 8;
int medio = 7;
int cuarto = 6;
int vacio = 5;

int i = 0;
int rele = 0;

LiquidLine linea1(1, 0, "ZONA RIEGO 1");
LiquidLine linea2(1, 1, "ZONA RIEGO 2");
LiquidLine linea3(1, 0, "ZONA RIEGO 3");
LiquidLine linea4(1, 1, "TODAS LAS ZONAS");
LiquidLine linea5(1, 0, "NIVEL");

LiquidScreen pantalla1;

LiquidLine linea1_2(1, 0, "Encender");
LiquidLine linea2_2(1, 1, "Apagar");
LiquidLine linea3_2(1, 0, "Atras");


LiquidScreen pantalla2;

LiquidLine linea1_3(1, 0, "NIVEL TANQUE");
LiquidLine linea2_3(1, 1, "");

LiquidScreen pantalla3;

LiquidMenu menu(lcd, pantalla1, pantalla2 );

void setup() {

  //Serial.begin(9600);
  //Serial.print(i);

  pinMode(rele1, OUTPUT);
  pinMode(rele2, OUTPUT);
  pinMode(rele3, OUTPUT);

  pinMode(sw, INPUT_PULLUP);

  pinMode(lleno, INPUT_PULLUP);
  pinMode(medio, INPUT_PULLUP);
  pinMode(cuarto, INPUT_PULLUP);
  pinMode(vacio, INPUT_PULLUP);

  pinMode(buzzer, OUTPUT);


  lcd.init();
  //lcd.begin();
  lcd.backlight();
  lcd.setCursor(3, 0);
  lcd.print("SATURNO V");
  tone(buzzer, 1000, 100);
  lcd.setCursor(2, 1);
  lcd.print("iniciando...");
  delay(2000);
  lcd.clear();
  while (digitalRead(sw) == 1) {
    lcd.setCursor(0, 0);
    lcd.print("NIVEL DE TANQUE");
    nivel();
  }

  menu.init();

  pantalla1.add_line(linea1);
  pantalla1.add_line(linea2);
  pantalla1.add_line(linea3);
  pantalla1.add_line(linea4);
  pantalla1.add_line(linea5);

  pantalla2.add_line(linea1_2);
  pantalla2.add_line(linea2_2);
  pantalla2.add_line(linea3_2);

  /*
    pantalla3.add_line(linea1_3);
    pantalla3.add_line(linea2_3);
  */

  linea1.set_focusPosition(Position::LEFT);
  linea2.set_focusPosition(Position::LEFT);
  linea3.set_focusPosition(Position::LEFT);
  linea4.set_focusPosition(Position::LEFT);
  linea5.set_focusPosition(Position::LEFT);

  linea1.attach_function(1, ZONA1);
  linea2.attach_function(1, ZONA2);
  linea3.attach_function(1, ZONA3);
  linea4.attach_function(1, todos);
  linea5.attach_function(1, setup);

  menu.add_screen(pantalla1);



  linea1_2.set_focusPosition(Position::LEFT);
  linea2_2.set_focusPosition(Position::LEFT);
  linea3_2.set_focusPosition(Position::LEFT);

  linea1_2.attach_function(1, fn_on);
  linea2_2.attach_function(1, fn_off);
  linea3_2.attach_function(1, fn_atras);

  menu.add_screen(pantalla2);

  /*

    linea1_3.set_focusPosition(Position::LEFT);
    linea2_3.set_focusPosition(Position::LEFT);

    linea1_3.attach_function(1, loop);
    linea2_3.attach_function(1, tanque);


    menu.add_screen(pantalla3);

  */
  pantalla1.set_displayLineCount(2);
  pantalla2.set_displayLineCount(2);
  // pantalla3.set_displayLineCount(2);

  menu.set_focusedLine(0);

  menu.update();
}

void loop() {

  selectOption();

  aState = digitalRead(outputA);
  if (aState != aLastState) {
    if (digitalRead(outputB) != aState) {
      menu.switch_focus(false);
    } else {
      menu.switch_focus(true);
    }
    menu.update();
    aLastState = aState;
  }
}

//Funciones:::::
void selectOption() {
  if (digitalRead(sw) == LOW) {
    menu.call_function(1);
    delay(200);
  }
}

void ZONA1() {
  menu.change_screen(2);
  menu.set_focusedLine(0);
  rele = 1;
}

void ZONA2() {
  menu.change_screen(2);
  menu.set_focusedLine(0);
  rele = 2;
}


void ZONA3() {
  menu.change_screen(2);
  menu.set_focusedLine(0);
  rele = 3;
}


void todos() {
  menu.change_screen(2);
  menu.set_focusedLine(0);
  rele = 0;
}
/*
  void tanque(){
   menu.change_screen(3);
  menu.set_focusedLine(0);

  }
*/

void fn_on() {

  switch (rele) {
    case 1:
      digitalWrite(rele1, HIGH);
      break;
    case 2:
      digitalWrite(rele2, HIGH);
      break;
    case 3:
      digitalWrite(rele3, HIGH);
      break;
    case 0:
      digitalWrite(rele1, HIGH);
      digitalWrite(rele2, HIGH);
      digitalWrite(rele3, HIGH);
      break;
  }
}


void fn_off() {
  switch (rele) {
    case 1:
      digitalWrite(rele1, LOW);
      break;
    case 2:
      digitalWrite(rele2, LOW);
      break;
    case 3:
      digitalWrite(rele3, LOW);
      break;
    case 0:
      digitalWrite(rele1, LOW);
      digitalWrite(rele2, LOW);
      digitalWrite(rele3, LOW);
      break;
  }
}

void fn_atras() {
  menu.change_screen(1);
  menu.set_focusedLine(0);
}

void nivel() {

  //CONDICION 100

  if (digitalRead(vacio) == LOW && digitalRead(cuarto) == LOW && digitalRead(medio) == LOW && digitalRead(lleno) == LOW) {
    lcd.setCursor(0, 0);
    lcd.print("NIVEL DE TANQUE");
    lcd.setCursor(3, 1);
    lcd.print(" 100");
    lcd.print(" %    ");
    for ( i ; i < 3; i++) {
      if (i == 3)break;
      tone(buzzer, 400);
      delay(200);
      tone(buzzer, 600);
      delay(200);
      tone(buzzer, 800);
      delay(200);
      noTone(buzzer);
    }
  }

  // CONDICION 75

  if (digitalRead(vacio) == LOW && digitalRead(cuarto) == LOW && digitalRead(medio) == LOW && digitalRead(lleno) == HIGH) {
    i = 0;
    lcd.setCursor(0, 0);
    lcd.print("NIVEL DE TANQUE");
    lcd.setCursor(4, 1);
    lcd.print(" 75");
    lcd.print(" %   ");
  }
  // CONDICION 50

  if (digitalRead(vacio) == LOW && digitalRead(cuarto) == LOW && digitalRead(medio) == HIGH && digitalRead(lleno) == HIGH) {
    i = 0;
    lcd.setCursor(0, 0);
    lcd.print("NIVEL DE TANQUE");
    lcd.setCursor(4, 1);
    lcd.print(" 50");
    lcd.print(" %   ");
  }

  //CONDICION 25

  if (digitalRead(vacio) == LOW && digitalRead(cuarto) == HIGH && digitalRead(medio) == HIGH && digitalRead(lleno) == HIGH) {
    lcd.setCursor(0, 0);
    lcd.print("NIVEL DE TANQUE");
    lcd.setCursor(4, 1);
    lcd.print(" 25");
    lcd.print(" %   ");
    for ( i ; i < 3; i++) {
      if (i == 3)break;
      tone(buzzer, 400);
      delay(200);
      tone(buzzer, 300);
      delay(200);
      tone(buzzer, 200);
      delay(200);
      noTone(buzzer);
    }
  }
  //CONDICION reserva

  if (digitalRead(vacio) == HIGH && digitalRead(cuarto) == HIGH && digitalRead(medio) == HIGH && digitalRead(lleno) == HIGH) {
    i = 0;
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("NIVEL DE TANQUE");
    lcd.setCursor(4, 1);
    lcd.print("RESERVA");
    lcd.noBacklight();
    delay(500);
    lcd.backlight();
    delay(500);
    for ( i ; i < 3; i++) {
      if ( i == 3)break;
      tone(buzzer, 200);
      delay(200);
      noTone(buzzer);
    }
  }
}